diff --git a/README.md b/README.md
index c19f50fc5738da291f8c7a7479a6f1c893e04662..5082ab161e7963667ac8288d6b024ba37dfde1af 100644
--- a/README.md
+++ b/README.md
@@ -22,4 +22,7 @@ The team is Enrico Allaria, Giulio Gaio, Carlo Spezzani and Mauro Trovo`
 For open source projects, say how it is licensed.
 
 ## Project status
-The project is in a beta state...
+The project is in a beta state... but could work.
+
+## HOWTO
+An exemple of python script, that show how to change the ECO FEL wavelength, is visible in docs folder with the name ScrivoEcoMaster.py